Every “serial cheater” requires a “serial truster.”
If your partner is repeatedly unfaithful, feeling like a victim won’t get you anywhere. Neither will looking the other way again and again. You don’t get points for ignoring the obvious. Looking the other way doesn’t make you generous or kind–it just makes you avoidant of the truth.
The question isn’t “Why does my partner cheat?” The real question is “Why do you continue to tolerate it?”
Please note: I’m not saying you should or should not tolerate your partner cheating. That’s a choice only you can make. But I am saying to make a conscious choice. If your partner is habitually dishonest with you, can you at least be 100% honest with yourself? Do some soul searching. Ask yourself what keeps you in this relationship. The point isn’t to judge or berate yourself–the point is to simply observe. Ultimately, the only person who can truly hide something from you is you.